DE3443558C2 - - Google Patents

Info

Publication number
DE3443558C2
DE3443558C2 DE3443558A DE3443558A DE3443558C2 DE 3443558 C2 DE3443558 C2 DE 3443558C2 DE 3443558 A DE3443558 A DE 3443558A DE 3443558 A DE3443558 A DE 3443558A DE 3443558 C2 DE3443558 C2 DE 3443558C2
Authority
DE
Germany
Prior art keywords
focusing
signal
detector
optical system
output signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE3443558A
Other languages
German (de)
English (en)
Other versions
DE3443558A1 (de
Inventor
Masamichi Machida Tokio/Tokyo Jp Toyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of DE3443558A1 publication Critical patent/DE3443558A1/de
Application granted granted Critical
Publication of DE3443558C2 publication Critical patent/DE3443558C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/671—Focus control based on electronic image sensor signals in combination with active ranging signals, e.g. using light or sound signals emitted toward objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)
DE19843443558 1983-12-02 1984-11-29 Automatische scharfeinstelleinrichtung Granted DE3443558A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58228682A JPS60120309A (ja) 1983-12-02 1983-12-02 自動焦点調節装置

Publications (2)

Publication Number Publication Date
DE3443558A1 DE3443558A1 (de) 1985-06-13
DE3443558C2 true DE3443558C2 (enrdf_load_stackoverflow) 1990-05-03

Family

ID=16880154

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843443558 Granted DE3443558A1 (de) 1983-12-02 1984-11-29 Automatische scharfeinstelleinrichtung

Country Status (3)

Country Link
US (1) US4550995A (enrdf_load_stackoverflow)
JP (1) JPS60120309A (enrdf_load_stackoverflow)
DE (1) DE3443558A1 (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004122A1 (en) * 1984-02-21 1988-06-02 Hiroshi Makino Automatic focusing device
JPS60182274A (ja) * 1984-02-29 1985-09-17 Canon Inc ビデオカメラにおける焦点検出装置
US5222156A (en) * 1984-03-09 1993-06-22 Canon Kabushiki Kaisha Object information processing apparatus
JPS61209411A (ja) * 1985-02-19 1986-09-17 Canon Inc 焦点検出装置とこれを具えた撮影装置
US4758082A (en) * 1985-04-17 1988-07-19 Canon Kabushiki Kaisha Distance detection apparatus
US4752831A (en) * 1986-05-20 1988-06-21 Polaroid Corporation Focusing system for camera apparatus
KR890003567B1 (ko) * 1986-08-07 1989-09-23 주식회사 금성사 비디오 카메라의 자동초점 시스템
JPS63125910A (ja) * 1986-11-17 1988-05-30 Sanyo Electric Co Ltd オ−トフオ−カス回路
DE3943677C2 (de) * 1988-03-11 1995-11-30 Canon Kk Bildaufnahmeeinrichtung
JPH01246516A (ja) * 1988-03-29 1989-10-02 Sony Corp 焦点位置検出装置
GB2219461B (en) * 1988-05-02 1992-11-18 Canon Kk Exposure control device
EP0366136B1 (en) * 1988-10-27 1995-03-22 Canon Kabushiki Kaisha Image sensing and processing device
JPH03230698A (ja) * 1990-02-05 1991-10-14 Mitsubishi Electric Corp オートホワイトバランス調整装置
DE4216073C2 (de) * 1991-05-15 1995-01-26 Asahi Optical Co Ltd Vorrichtung zum automatischen Scharfeinstellen eines optischen Systems
JP2005195893A (ja) * 2004-01-07 2005-07-21 Canon Inc 撮像装置、その制御方法およびプログラム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3302714A1 (de) * 1982-01-27 1983-08-11 Hitachi, Ltd., Tokyo Automatisches fokussierungssystem fuer eine videokamera
JPS5961807A (ja) * 1982-09-30 1984-04-09 Canon Inc 自動焦点制御装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399307A (en) * 1965-05-20 1968-08-27 Bell & Howell Co Motion sensing exposure system for optical instruments
DE3004878C2 (de) * 1979-02-09 1984-04-19 Ricoh Co., Ltd., Tokio/Tokyo Einrichtung zur Bestimmung der Scharfeinstellung einer Kamera
US4344024A (en) * 1979-07-12 1982-08-10 Agfa-Gevaert Ag Digital control system for automatic-focus cameras
US4347590A (en) * 1980-03-03 1982-08-31 Heger Vernon G Area surveillance system
JPS56132315A (en) * 1980-03-19 1981-10-16 Fuji Photo Film Co Ltd Automatic focusing method
JPS575019A (en) * 1980-06-13 1982-01-11 Olympus Optical Co Ltd Focus controller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3302714A1 (de) * 1982-01-27 1983-08-11 Hitachi, Ltd., Tokyo Automatisches fokussierungssystem fuer eine videokamera
JPS5961807A (ja) * 1982-09-30 1984-04-09 Canon Inc 自動焦点制御装置
US4591919A (en) * 1982-09-30 1986-05-27 Canon Kabushiki Kaisha Automatic focus control system and camera using same

Also Published As

Publication number Publication date
DE3443558A1 (de) 1985-06-13
JPS60120309A (ja) 1985-06-27
US4550995A (en) 1985-11-05

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition